The southern skies (top) are seen over the ESO 3.6-meter telescope at the La Silla Observatory in Chile. The Hubble Space Telescope captured images of the double star Alpha Centauri AB (lower-left) and Proxima Centauri (lower-right), the closet star to our solar system. Proxima Centauri is also orbited by the nearest exoplanet, Proxima b, discovered just last year.